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Vishay General Semiconductor - Diodes Division 1N6284A-E3/73
- Part No.:
- 1N6284A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6284A-E3/73.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,991
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Product details
Overview
1N6284A-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 34.2 V to 37.8 V breakdown voltage (VBR) at 1.0 mA test current, 30.8 V maximum standoff voltage (VWM), 49.9 V clamping voltage (VC) at 30.1 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1N6284A-E3/73 datasheet, 1N6284A-E3/73 pinout, 1N6284A-E3/73 application, or 1N6284A-E3/73 equivalent, this device delivers verified transient suppression performance in commercial-grade, through-hole 1.5KE package designs requiring robust ESD and surge immunity per IEC 61000-4-2/4-5, with RoHS-compliant matte tin-plated leads and UL 94 V-0 molded epoxy construction.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches into low-impedance conduction to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
It supports single-pulse surge handling up to 200 A (8.3 ms half-sine, unidirectional only) and maintains thermal stability with 75 °C/W junction-to-ambient thermal resistance. The device is rated for continuous operation from –55 °C to +175 °C junction temperature and exhibits a +0.099 %/°C temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V at 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage detection |
| VWM | 30.8 V - maximum continuous reverse operating voltage before leakage rises above 1.0 µA |
| VC @ IPPM | 49.9 V at 30.1 A (10/1000 µs) - clamping voltage limiting protected circuit stress during surge events |
| PPPM | 1500 W - peak transient power dissipation capability without failure under standardized surge waveform |
| IFSM | 200 A (8.3 ms half-sine) - maximum non-repetitive forward surge current handling capacity |
| TJ range | –55 °C to +175 °C - extended thermal operating envelope suitable for under-hood automotive and industrial environments |
| Package | 1.5KE case - axial-leaded, JEDEC-standard through-hole package with 0.375" lead length and UL 94 V-0 epoxy body |
Pinout & Package
1N6284A-E3/73 uses the standard 1.5KE axial-leaded package: cathode indicated by color band on body; leads are matte tin-plated, solderable per J-STD-002/JESD 22-B102, rated for 275 °C dip soldering (10 s max). Case meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Avalanche conduction terminal | Marked with color band; connected to protected line (e.g., VIN, signal rail) to clamp transients to VC |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Provides high-energy transient suppression without degradation in power supply and interface protection |
| Fast response time (~1 ns) | Clamps voltage spikes before sensitive ICs experience damaging overvoltage exposure |
| Low incremental surge resistance | Minimizes clamping voltage overshoot and improves energy diversion efficiency during fast-rising transients |
| RoHS-compliant, commercial grade (E3 suffix) | Meets environmental compliance requirements with JESD 201 Class 1A whisker resistance for lead finish |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O lines against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Unidirectional shunt clamping element placed across DC supply rails or signal inputs. Use Value: Limits transient voltage to ≤49.9 V during 30.1 A surges, preventing latch-up or oxide breakdown in 3.3 V/5 V logic interfaces. |
Use Scenario: Surge suppression on LIN bus lines and sensor supply rails exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V subsystem rails upstream of LDOs and CAN/LIN transceivers. Use Value: Withstands 1500 W pulses while maintaining VWM = 30.8 V - compatible with 24 V nominal systems and ISO 7637-2 Pulse 1/2/5a waveforms. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Input-stage protection for PoE-powered equipment and remote DSLAM power supplies subjected to lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense on DC input terminals, coordinated with MOVs and fuses. Use Value: Clamps 10/1000 µs transients to 49.9 V within nanoseconds, reducing stress on downstream DC-DC converters and PMICs. |
Use Scenario: ESD and surge protection for touch panel controllers and MCU reset lines in washing machines and HVAC systems. IC Role / Device Role / Timing Role: Localized transient suppressor mounted directly at connector or IC pin. Use Value: Low leakage (<1.0 µA at 30.8 V) prevents battery drain in standby mode; 175 °C max TJ supports sealed enclosure thermal profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Surface-mount SMB package; same VBR range (36.0–40.0 V), slightly lower PPPM (600 W), higher VC (58.1 V @ 10.3 A) | Requires PCB redesign for SMT layout; better suited for space-constrained consumer electronics vs. legacy through-hole industrial boards | Select SMBJ36A only when board real estate is limited and surge energy requirements are ≤600 W. |
| 1N6284HE3_A | Same 1.5KE package and electrical specs, but AEC-Q101 qualified and HE3 suffix (JESD 201 Class 2 whisker test) | Approved for automotive under-hood use; not required for commercial-grade industrial or telecom applications | Choose 1N6284HE3_A only if automotive qualification and enhanced whisker resistance are mandatory for the end application. |
Compared with SMBJ36A and 1N6284HE3_A, the 1N6284A-E3/73 offers optimal cost-performance balance for commercial through-hole designs needing full 1500 W surge handling without automotive certification overhead or SMT retooling.
Availability
1N6284A-E3/73 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom power feeds, and consumer appliance control boards requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.
Supply support for 1N6284A-E3/73 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power handling, and application-specific optimization.
The 1N6284A-E3/73 belongs to Vishay's TRANSZORB® TVS family - engineered specifically for high-energy transient suppression in harsh electrical environments where fast response, stable clamping, and long-term surge endurance are critical.
FAQ
What is the breakdown voltage tolerance for 1N6284A-E3/73?
The 1N6284A-E3/73 has a specified breakdown voltage range of 34.2 V to 37.8 V at 1.0 mA test current, representing ±5.3% tolerance about the nominal 36 V rating. This tight VBR window ensures consistent clamping behavior across production lots and enables predictable system-level overvoltage margin design for the 1N6284A-E3/73.
Is 1N6284A-E3/73 suitable for bidirectional transient protection?
No, the 1N6284A-E3/73 is a unidirectional TVS diode - it conducts only in reverse bias above VBR and blocks forward current like a standard rectifier. For bidirectional protection, Vishay offers the 1N6284CA variant (not the 1N6284A-E3/73); using 1N6284A-E3/73 on AC or floating lines requires external series diode pairing or alternative CA-suffix parts.
What is the maximum clamping voltage of 1N6284A-E3/73 under surge conditions?
The 1N6284A-E3/73 clamps to a maximum of 49.9 V when subjected to its rated 30.1 A peak pulse current (10/1000 µs waveform). This value is measured at the device terminals and represents the upper limit of voltage seen by protected circuitry during worst-case surge events - a key parameter for verifying safe operating margins of downstream 3.3 V, 5 V, or 24 V ICs in designs using the 1N6284A-E3/73.
Does 1N6284A-E3/73 meet automotive qualification standards?
No, the 1N6284A-E3/73 is a commercial-grade part with E3 suffix (RoHS-compliant, JESD 201 Class 1A whisker test). It is not AEC-Q101 qualified. For automotive applications, Vishay offers the 1N6284AHE3_A variant - identical electrical specs but with AEC-Q101 qualification and HE3 suffix - which must be selected instead of the 1N6284A-E3/73 where automotive compliance is required.
What is the thermal resistance of 1N6284A-E3/73, and how does it affect derating?
The 1N6284A-E3/73 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W. At ambient temperatures above 25 °C, its 6.5 W steady-state power dissipation must be linearly derated - e.g., at 75 °C ambient, maximum continuous power drops to ~3.25 W. This derating curve (Fig. 5 in Vishay Doc. 88301) directly impacts long-term reliability in enclosed or high-temperature environments where the 1N6284A-E3/73 is deployed.
1N6284A-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6284A-E3/73 FAQ
1.How can I place an order for 1N6284A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6284A-E3/73 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1N6284A-E3/73 reliable?
The price and inventory of 1N6284A-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6284A-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6284A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6284A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6284A-E3/73?
1N6284A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6284A-E3/73 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1N6284A-E3/73?
For technical support, including 1N6284A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6284A-E3/73 requirements.
6.How does Aetrix verify that 1N6284A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6284A-E3/73 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N6284A-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6284A-E3/73?
All 1N6284A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6284A-E3/73, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1N6284A-E3/73 part is unused and in its original packaging.
Return procedure for 1N6284A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6284A-E3/73 Tags
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